Captain Morgan brings back its Ultimate Pose-Off Contest for a second year, and with just the right Captain's pose you could win a trip to the Playboy Mansion's annual Halloween party. It's your chance to party with Playmates, meet the Girls Next Door and have access to one of the biggest Playboy parties of the year. For details and to enter for your chance to go to one of the hottest tickets in L.A., visit captainmorgan.com.

Watch the video for a special workout and tips on how to strike the perfect Captain Morgan pose from Girls Next Door Holly Madison and Bridget Marquardt.

Get an inside preview of what's in store for
Season 4 of The Girls Next Door.

The Playboy Mansion has once again opened its doors for some oh-so-pleasant viewing. Our favorite blonde trio -- Holly Madison, Bridget Marquardt and Kendra Wilkinson -- is back for an all-new season that's packed with worldly adventures. Hef and his ladies ignite the fourth season premiere with the Mansion's annual Fourth of July bash. Holly, "queen of the slip and slide," gets wet and wild while Bridget and Kendra give some Marines an unforgettable send-off. In following episodes, the Mansion hosts an Arabian Nights-themed Midsummer Night's Dream Party, the girls embark on an Alaskan adventure and Hef and the girls travel around the world from Paris to St. Tropez for the Monte Carlo International Television Festival. Family is also a main focus this season as Kendra's mom reveals her new look after cosmetic surgery, Bridget deals with the emotional stress of having her brother in Iraq and Holly prepares for her sister's wedding.

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The Girls Next Door show off their cover-model fitness routines in their own workout videos.